Proof Research PXT AR Platform .223 Wylde Threaded AR Barrel 2.1oz 7 Twist Gas Length Rifle 20 in Carbon Black
No ratings yetFits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Muzzle thread
- 5/8x24 · Muzzle devices
- Barrel length
- 2E+1" · Handguards
Specifications
- Manufacturer
- Proof Research
- Color
- Black
- Platform
- AR-15
- Caliber
- .223 Wylde
- Barrel length
- 20"
- Thread pattern
- 5/8 x 24
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| MidwayUSA Best price | $1,149.00checked Nov 13, 2026 | In stock | Buy at MidwayUSA | |
| OpticsPlanet | $1,149.00Salechecked Nov 13, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $1,149.00 at MidwayUSA. Dashed line = out of stock. Tracking since Oct 17, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| MidwayUSA | $1,149.00 | $1,149.00 | $1,149.00 |
| OpticsPlanet | $1,149.00 | $1,149.00 | $1,149.00 |
Since Oct 17, 2026.
About this part
The Proof Research PXT AR Platform .223 Wylde Threaded AR Barrel 2.1oz 7 Twist Gas Length Rifle 20 in Carbon Black is a 2E+1" 5.56 / .223 barrel from Proof Research. It's sold by 2 stores, all at $1,149.00. The lowest in-stock price in the last 30 days was $1,149.00 at MidwayUSA.
From the manufacturer
Proof Research PXT AR Platform .223 Wylde Threaded AR Barrel 2.1oz 7 Twist Gas Length Rifle 20 in Carbon Black. PXT - PROOF Exponential Twist - is a complete rethinking of conventional rifling design and twist progression engineered to reduce engraving force minimize throat erosion and create a smoother transition as the projectile engages the rifling. By dramatically reducing rifling lead angle and smoothing projectile engagement into the bore PXT technology helps reduce wear improve consistency and create less felt torque during firing for improved recoil control and the ability to stay on target more effectively. In controlled testing PXT barrels have demonstrated significant increases in barrel life while maintaining the accuracy standards expected from a PROOF barrel. PXT AR barrels arrive fully chambered and ready for installation making them an easy upgrade for shooters looking to build or refine a high-performance rifle system. Specifications for Proof Research PXT AR Platform .223 Wylde Threaded AR Barrel: Manufacturer: Proof Research Color: Black Finish: Carbon Fabric/Material: Steel Caliber: .223 Wylde Gas Block Journal Size-Diameter: .750 in Barrel Material: Steel Flutes: No Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Firearms Threads Per Inch: 5/8x24 Features of Proof Research PXT AR Platform .223 Wylde Threaded AR Barrel 30-100percent longer barrel life Depending on barrel length 20-50percent improved consistency/accuracy Dramatically reduced throat erosion Especially with longer barrels Less sensitivity to ammo variation. Smoother jump to rifling allows greater accuracy with different ammunition over the life of the barrel. Stronger performance with next generation of higher-pressure factory ammo Package Contents: Proof Research PXT AR Platform .223 Wylde Threaded AR Barrel What firearm models does the manufacturer say Proof Research PXT AR Platform .223 Wylde Threaded AR Barrel is compatible with? The manufacturer suggests that Proof Research PXT AR Platform .223 Wylde Threaded AR Barrel is compatible with AR-15Proof Research 152140: PXT AR Platform .223 Wylde Threaded AR Barrel 2.1oz 7 Twist Gas Length Rifle 20 in Carbon Black
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